From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46360) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YY9xN-00048v-D6 for qemu-devel@nongnu.org; Wed, 18 Mar 2015 05:08:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YY9xI-0001y5-Ag for qemu-devel@nongnu.org; Wed, 18 Mar 2015 05:08:05 -0400 Received: from mga03.intel.com ([134.134.136.65]:50843) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YY9xI-0001uB-5s for qemu-devel@nongnu.org; Wed, 18 Mar 2015 05:08:00 -0400 From: Tiejun Chen Date: Wed, 18 Mar 2015 17:06:39 +0800 Message-Id: <1426669601-13891-9-git-send-email-tiejun.chen@intel.com> In-Reply-To: <1426669601-13891-1-git-send-email-tiejun.chen@intel.com> References: <1426669601-13891-1-git-send-email-tiejun.chen@intel.com> Subject: [Qemu-devel] [v7][PATCH 08/10] xen, gfx passthrough: register a isa bridge List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: mst@redhat.com, kraxel@redhat.com, pbonzini@redhat.com, rth@twiddle.net Cc: allen.m.kay@intel.com, qemu-devel@nongnu.org Currently we just register this isa bridge when we use IGD passthrough in Xen side. Signed-off-by: Tiejun Chen --- hw/xen/xen_pt.c | 18 ++++++++++++++++++ include/hw/xen/xen.h | 1 + 2 files changed, 19 insertions(+) diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c index fcc9f1c..2d5cebb 100644 --- a/hw/xen/xen_pt.c +++ b/hw/xen/xen_pt.c @@ -632,6 +632,21 @@ static const MemoryListener xen_pt_io_listener = { .priority = 10, }; +static void +xen_igd_passthrough_isa_bridge_create(XenPCIPassthroughState *s, + XenHostPCIDevice *dev) +{ + uint16_t gpu_dev_id; + PCIDevice *d = &s->dev; + + if (!is_igd_vga_passthrough(dev)) { + return; + } + + gpu_dev_id = dev->device_id; + igd_passthrough_isa_bridge_create(d->bus, gpu_dev_id); +} + /* init */ static int xen_pt_initfn(PCIDevice *d) @@ -680,6 +695,9 @@ static int xen_pt_initfn(PCIDevice *d) xen_host_pci_device_put(&s->real_device); return -1; } + + /* Register ISA bridge for passthrough GFX. */ + xen_igd_passthrough_isa_bridge_create(s, &s->real_device); } /* Handle real device's MMIO/PIO BARs */ diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h index 4356af4..703148e 100644 --- a/include/hw/xen/xen.h +++ b/include/hw/xen/xen.h @@ -51,4 +51,5 @@ void xen_register_framebuffer(struct MemoryRegion *mr); # define HVM_MAX_VCPUS 32 #endif +extern void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id); #endif /* QEMU_HW_XEN_H */ -- 1.9.1